Barachin is a wreck and reef dive site in Japan, situated at depths between 12 and 20 metres. The site is accessible by boat and features mild currents, making it suitable for beginner divers. Visibility at the site ranges from 15 to 40 metres. Divers should exercise caution when navigating the wreck structure, specifically avoiding enclosed spaces and jagged metal edges to prevent entanglement. Water temperatures fluctuate throughout the year, ranging from 21C in the cooler months to 28C during the summer. As the wreck and surrounding reef provide various ledges and openings, divers should maintain awareness of their surroundings at all times.

Dobuiso is an advanced dive site in Japan featuring a combination of reef, wall, and pinnacle topography. The site is defined by strong currents that require divers to possess proficient current-reading skills. The structure extends from the shallows down to a maximum depth of 22 metres. Due to the challenging conditions and potential for strong water movement, boat access is mandatory. Divers should monitor their depth closely and remain in proximity to the boat throughout the dive. Visibility at this location is variable, and the use of a surface marker buoy is recommended. The site supports a variety of reef fish and invertebrates typical of the region.